The Limit 2 value must not be equal to the Limit 1 value.
5.5.7.3. FILTERED DERIVATIVES
Option: Yes or No
This option adds a filtering procedure in the 1st and 2nd derivative computation algorithm that reduces the influence of pH or mV
noise.
The Filtered Derivatives option can be enabled by selecting "Yes" in the Filtered Derivatives Option screen.
Noise can be due to:
• Chemical system properties (sample, titrant, solvent), such as slow chemical reactions or unbuffered samples such as
wastewater, tap water, wine
• Electrode response
• Incorrect method parameters settings such as Signal Stability, Stirring Speed, etc.
• Insufficient titrant additions
Note: A shift in the end point volume by 1 or 2 doses may be seen due to filtering.
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